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Test scope & comparison notes
These are recorded facts, not a unified ranking. Tested tiers and scope are not consistently recorded. Read pricing with its date and timing with its conditions. Privacy observations reflect visible flows and statements, not a security audit.
Cross-task capability coverage across selected products
Each product is scored independently per task edge; switch tasks below while keeping shared products selected| Task edge | Bigjpg | Icons8 | Switch / compare |
|---|---|---|---|
| Background removal | Not tested in topic | 73/100 2048 × 2048 · PNG | Compare in task topic → |
| Image upscaling | 89/100 2048 × 2048 · PNG | 66/100 1024 × 1024 · PNG | Active task |
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Browse this task →| Criterion | Bigjpg (AI Super-Resolution Image Enlarger) Image upscaling 89/100 Seven-aspect task score Free login-free 4× output offers adjustable denoising and clear upgrade limits; detail is retained well, with about 18.5 seconds of free processing in this run. Tested export 2048 × 2048 · PNG Historical test · 2026-10-17 | Icons8 Smart Upscaler Image upscaling 66/100 Seven-aspect task score Login-free trials are available, but only three uses at 2× with a watermark; limits are not clear upfront, so usable final output generally needs payment. Tested export 1024 × 1024 · PNG Historical test · 2026-10-17 |
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| Pricing & rules | ||
| Pricing plans | Bigjpg web and app plans (Free / Basic 2-month / Standard half-year / Pro annual); CNY · 2026-10-21 Plan · source date Monthly / one-time Annual bill / period Quota & limits Free2026-10-21 ↗ Free Free Free Available without login; 20 images/month, max 5 MB per file, up to 4x unwatermarked upscaling on shared servers. Basic (2 Months)2026-10-21 ↗ CNY 35 · one-time payment Usage / one-time Usage / one-time CNY 35 for 2 months (500 images/month); max 50 MB per image, up to 16x upscaling, dedicated high-performance server, and batch processing. Valid for 2 months from purchase Standard (6 Months)2026-10-21 ↗ CNY 69/6 months Other period Other period CNY 69 for 6 months (1,000 images/month); max 50 MB per image, up to 16x upscaling, dedicated high-performance server, and batch processing. Pro (1 Year)2026-10-21 ↗ — CNY 138/year Annual CNY 138 for 1 year (2,000 images/month); max 50 MB per image, up to 16x upscaling, dedicated high-performance server, and batch processing. 4 plan / billing-period records, all listed; — means that period is not recorded. The official pricing modal lists Free (20 images/month, max 5 MB, up to 4x upscaling) and three fixed-term tiers: Basic CNY 35 for 2 months (500 images/month), Standard CNY 69 for 6 months (1,000 images/month), and Pro CNY 138 for 1 year (2,000 images/month). All paid tiers unlock up to 16x upscaling, 50 MB upload size, priority high-performance servers, and batch processing via WeChat Pay, Alipay, or Stripe. Cancellation, sources & verification recordPurchased for fixed periods (2 months, 6 months, or 1 year) via WeChat Pay, Alipay, or Stripe under official Terms of Service. Bigjpg official website and pricing table modal ↗ · 2026-10-21 Capture 1 ↗ | Icons8 web background remover: monthly, annual and prepaid, excluding API · 2026-10-20 Plan · source date Monthly / one-time Annual bill / period Quota & limits Minimum prepaid package2026-10-20 ↗ USD 10 · one-time payment Usage / one-time Usage / one-time Minimum charge $10; at the listed $0.20/image this equals 50 images; use anytime Limited2026-10-20 ↗ USD 9/month USD 90/year Monthly 100 images/month; unused credits roll over Annual 100 images/month; unused credits roll over Prepaid $502026-10-20 ↗ USD 50 · one-time payment Usage / one-time Usage / one-time 250 images at the listed $0.20/image; use anytime Prepaid $1002026-10-20 ↗ USD 100 · one-time payment Usage / one-time Usage / one-time 500 images at the listed $0.20/image; use anytime Prepaid $2002026-10-20 ↗ USD 200 · one-time payment Usage / one-time Usage / one-time 1,000 images at the listed $0.20/image; use anytime 9 plan / billing-period records, all listed; — means that period is not recorded. Prepaid entry confirms a $10 minimum and $50/$100/$200/custom choices. Displayed discounted prices are retained. Reviewed general terms assign applicable taxes to the user but do not specify background-remover subscription refund/cancellation details, which remain unconfirmed. Verification has gaps; unknown prices and quotas are not inferred. Cancellation, sources & verification recordCancellation and refund terms follow official checkout and help policies. Official plans and usage terms ↗ · 2026-10-20 Capture 1 ↗ · Capture 2 ↗ Minimum prepaid charge and amount choices ↗ · 2026-10-20 Capture 1 ↗ Relevant official terms excerpts ↗ · 2026-10-20 Capture 1 ↗ |
| Free & trial allowance on the test date | Free tier allows 20 images/month up to 3000×3000px / 5MB at 2x or 4x with all 5 denoising levels and zero watermarks | Guests get 3 demo upscales ('2 demo upscales left'), but unlike Icons8's unwatermarked Background Remover, Smart Upscaler watermarks free exports and locks 4x enlargement |
| Cancellation & refunds | Purchased for fixed periods (2 months, 6 months, or 1 year) via WeChat Pay, Alipay, or Stripe under official Terms of Service. | Cancellation and refund terms follow official checkout and help policies. |
| Disclosure of costs & limits | 8x and 16x options are transparently disabled in the settings modal before processing starts | Displays 'Remove watermark' and 'Enlarge to 4x' paid toggles underneath the result card after upload |
| Task quality | ||
| Measured fixture results | Tested scale: 4× | Tested scale: 2× |
| Fixture findings | The tested 4× photo configuration produced smooth output with text retained; other settings remain untested. | Colours and facial features looked natural; the free trial output was 2× with a watermark. |
| Original historical observation | Configured to Photo + 4x + Low Noise Reduction, Bigjpg exported a clean 2048×2048 PNG scoring PSNR = 28.27 dB and SSIM = 0.9790 with smooth tonal transitions and zero generative hallucinations. | Smart Upscaler 3 delivers natural skin and hair tone fidelity (PSNR=26.21 dB, SSIM=0.9644) without harsh oversharpening halos, but restricts free demos to 2x (1024×1024) with a watermark—contrasting sharply with Icons8 Background Remover's unwatermarked 2048×2048 free demos. |
| Suitable uses · historical assessment | Users wanting a no-login, zero-watermark 4x (2048px) upscaler with 5-level adjustable noise reduction for photos and illustrations | Designers with an Icons8 prepaid pack ($0.20/image) or subscription needing up to 500-image batch upscaling + 1-click background removal |
| Result & output evidence | ||
| Delivery capabilities | ||
| Recorded export specifications | 2048 × 2048 · PNG · No watermark in test | 1024 × 1024 · PNG · Check watermark record |
| Historical specification note · not an official maximum | 2048 × 2048 (Full 4x Unwatermarked PNG) | 1024 × 1024 (2x watermarked PNG; 4x 2048×2048 requires payment) |
| Watermark observation | None (100% watermark-free) | Free tier is stamped with an Icons8 watermark via ai-cdn.icons8.com ('Remove watermark' costs $0.20/image or subscription) |
| Batch & API | Multi-image queue, Windows/Mac desktop apps, and REST API | Batch upload up to 500 images, GoProd Mac desktop app, and REST API |
| Recorded free-tier dimensions | 2048 × 2048 | 1024 × 1024 |
| Attached file dimensions | 2048 × 2048 · PNG | 1024 × 1024 · PNG |
| Speed & reliability | ||
| Timing observation | Network-observed server wait: 18.5s · End-to-end reference: 20s | Network-observed server wait: 6.8s · End-to-end reference: 9.5s |
| Date & fixture | 2026-10-17 · anchor_upscale_v1 · US-West (California, AS2914) | 2026-10-17 · anchor_upscale_v1 · US-West (California, AS2914) |
| Repeated tests & reliability | No standardized repetition count, success rate or variability range is recorded. | No standardized repetition count, success rate or variability range is recorded. |
| Interaction experience | ||
| Account requirements | No login in this test | No login in this test |
| Sign-in methods | No login required; optional account login for history sync and parallel high-speed queues | No login required for 3 demo 2x upscales; Email / Google login supported |
| Manual adjustment | Not verified | Not verified |
| Interaction observations | Zero registration, zero popups, and zero watermarks: once processing completes, a green "Download (274.41 KB)" button directly exports the full 4x (2048×2048) PNG. | Allows unauthenticated visitors to download the 1024×1024 watermarked 2x sample for quality inspection and provides a 1-click handoff to Icons8 Background Remover. |
| Background & reputation | ||
| Service lifecycle notice | Not verified | Not verified |
| Operator | Bigjpg Team | Icons8 LLC |
| Recorded origin | Cross-Platform AI Super-Resolution Team (Launched 2017) | New York, USA (Global distributed team) |
| Domain history record | 2017–present (9+ years) | 2012–present |
| Background & reputation assessment | Operating continuously since 2017 as one of the best-known Waifu2x / SRCNN deep convolutional super-resolution services across Web, Windows, macOS, iOS, Android, and API. | Official product by Icons8 LLC (founded 2012, creator of Icons8, Lunacy, Background Remover, Smart Upscaler, and Generated Photos). |
| External reputation record | Not verified | Not verified |
| Engineering & privacy | ||
| Processing location | Uploaded for cloud processing | Uploaded for cloud processing |
| Third-party tracking record | Not verified | Not verified |
| Engineering & privacy assessment | Supports offline queue recovery and one-click "Delete" to immediately purge uploaded/upscaled files from cloud storage. | Supports batch drag-and-drop of up to 500 images (up to 5MB each) and offers the GoProd Mac desktop app and commercial REST API. |
| Retention statement | Explicit retention period unconfirmed; inspect policy record | Explicit retention period unconfirmed; inspect policy record |
| Evaluation basis | ||
| Pricing transparency | 33 / 35 Anonymous guests can upload the 512×512 test image and open the clean configuration modal (Artwork/Photo, 2x/4x free, 5 noise reduction levels: None/Low/Medium/High/Highest), with only 8x/16x grayed out and labeled "Upgrade for 8x/16x" (02_workspace.png, 03_download.png). | 18 / 35 Landing page (01_landing.png) advertises 'Images can be upscaled up to 7680x7680px' without upfront notice that free trials are capped at 2x and watermarked. Uploading the 512×512 anchor grants 3 guest demo upscales ('2 demo upscales left'), but caps free output at 2x (1024×1024) with a server-side imgproxy watermark (02_workspace.png); clicking 'Enlarge to 4x' or 'Remove watermark' opens the '$0.20 per image / $9 per month' Upgrade modal (03_download.png). |
| Interaction restraint | 28.5 / 30 Zero registration, zero popups, and zero watermarks: once processing completes, a green "Download (274.41 KB)" button directly exports the full 4x (2048×2048) PNG. | 20 / 30 Allows unauthenticated visitors to download the 1024×1024 watermarked 2x sample for quality inspection and provides a 1-click handoff to Icons8 Background Remover. |
| Background & reputation | 18 / 20 Operating continuously since 2017 as one of the best-known Waifu2x / SRCNN deep convolutional super-resolution services across Web, Windows, macOS, iOS, Android, and API. | 19 / 20 Official product by Icons8 LLC (founded 2012, creator of Icons8, Lunacy, Background Remover, Smart Upscaler, and Generated Photos). |
| Engineering & privacy | 13 / 15 Supports offline queue recovery and one-click "Delete" to immediately purge uploaded/upscaled files from cloud storage. | 11 / 15 Supports batch drag-and-drop of up to 500 images (up to 5MB each) and offers the GoProd Mac desktop app and commercial REST API. |
| Task quality | 56.5 / 65 4x Photo mode (Low noise reduction) exported a native 2048×2048 unwatermarked PNG achieving full-frame PSNR = 28.27 dB and SSIM = 0.9790, suppressing JPEG block artifacts while preserving clean structural geometry and color accuracy (56.5/65). | 44 / 65 Smart Upscaler 3 preserves facial and curly hair structure well at 2x (PSNR=26.21 dB, SSIM=0.9644, edge_corr=0.4670), though overall score is constrained by the 2x (1024×1024) free cap and watermark overlay (44.0/65). |
| Deliverable specifications | 20 / 20 Free guest tier directly exports full 4x (2048×2048) unwatermarked PNG (20.0/20). | 10.5 / 20 3 guest demo upscales allow downloading a 1024×1024 PNG, but include an imgproxy brand watermark (wmid:upscaler2) and lock 4x (2048×2048) behind a paywall (10.5/20). |
| Processing speed | 10.5 / 15 Free cloud GPU 4x Photo super-resolution completed in ~18.5s (10.5/15). | |
